I am planning on getting 20x8.5/10 wheels for my car but was wondering with how aggressive the sportline drop is if a 305 width tire on a 10 wide wheel would cause some rubbing problems. I know 285 should be fine but I will take more rubber on the ground if i can.

I am planning on getting 20x8.5/10 wheels for my car but was wondering with how aggressive the sportline drop is if a 305 width tire on a 10 wide wheel would cause some rubbing problems. I know 285 should be fine but I will take more rubber on the ground if i can.

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May just depend on offset.
You should ask this guy, who is on this forum.

Originally Posted by LuisBlackGT
I'm lowered 1.5 with 305/35/20, no rubbing at all with +48 offset

Yeah, 55mm offset is pretty high, pushing the tire inboard. I'll bet a 45 offset would allow a wider setup.
A 10mm difference in offset would equate to about a difference of 20mm in tire width.

With these wheels I could have added another 1-1/2" making them 11" wide without impacting anything except relocating the sway bar. I had planned on adding 2" on my TrakPak wheels which had an offset of 48mm...they still would have cleared although 19 tires are somewhat limited in anything bigger than 285's.

I only had slight rubbing when hitting a huge pot hole or the car goes down a big hill under high speed causing the car to squat really hard. It never did any thing to the tire or fender well. You could hardly tell the tire even made contact in side the fender.